<script tpye="text/javasript">


//Number
console.log(Number("10"))
console.log(Number("10ss"))
// parseInt
console.log("parseInt 10ss",parseInt("100ss"))
console.log("parseInt 3.14",parseInt(3.14))

// parseFloat
console.log("parseFloat(3.14s)",parseFloat("3.14s"))



var i ="console.log(1==true);"

console.log(i,1==true);

var i ="console.log(i,\"10\"==10)"
console.log(i,"10"==10)

var i ="console.log(i,\"10\"===10)"
console.log(i,"10"===10)

var i ="console.log(i,10==10 && 1==1)"
console.log(i,10==10 && 1==1)

var i ="console.log(i,10==5 || 1==1)"
console.log(i,10==5 || 1==1)

var i ="console.log(i,!5==0)"
console.log(i,!5==0)
</script>